nginx 配置tomcat 实现负载均衡

环境：
准备三台机械： 两台安装tomcat 一台安装nginx;
安装步骤省略；
tomcat一台的IP：http://192.168.195.132:8080
另一台tomcat一台的IP：http://192.168.195.133:8080
nginxIP:http://192.168.195.134
主要：
nginx的配置文件nginx.conf：
#user  nobody;
worker_processes  1;
 
#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;
 
#pid        logs/nginx.pid;
 
 
events {
    worker_connections  1024;
}
 
 
http {
    include       mime.types;
    default_type  application/octet-stream;
 
    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';
 
    #access_log  logs/access.log  main;
 
    sendfile        on;
    #tcp_nopush     on;
 
    #keepalive_timeout  0;
    keepalive_timeout  65;
 
    upstream myServer{  
      server 192.168.195.132:8080 weight=1;  #weight权重 权重越大访问的概率越大

server 192.168.195.133:8080 weight=2;  
    }
 
    #gzip  on;
 
    server {
        listen       8080;
        server_name  192.168.195.134;
 
        #charset koi8-r;
 
        #access_log  logs/host.access.log  main;
 
       location / {  
            proxy_pass http://myServer;  #注意 http://后面的名字需要与  upstream myServe 的一致

proxy_redirect default;  
        }  
 
        #error_page  404              /404.html;
 
        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }
 
        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}
 
        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}
 
        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }
 
 
    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;
 
    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}
 
 
    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;
 
    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;
 
    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;
 
    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;
 
    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}
 
}

分别启动两台tomat 访问路径如：
http://192.168.195.132:8080/examples/index.html

另外一台：
http://192.168.195.133:8080/examples/index.html

nginx的访问：

原文地址：http://blog.51cto.com/4925054/2060572